Sometimes after a cold start, I've noticed a ticking noise in the front end of the truck that only occurs at the top end the rpm range just before I need to shift into the next gear. After a little while, the noise disappears. It almost sounds like something could be rattling/vibrating, but I'm not sure. It is an 04 SR5 with 95, 000 miles and the 2.7L engine. Any insight would be appreciated!